baber/WOPTO huggingface dataset:
Patent GB-292416-A (GB)
Title: An improved combustion promoting device for furnaces
IPC: F23L9/00
Filed: 1927-11-23
Abstract: 292,416. Hennessy, N. Nov. 23, 1927. Air, supplying; air supply and draught, regulating; doors.-A device for introducing streams of preheated air into the combustion chambers of furnaces comprises a casing 5 arranged within the furnace and containing outer and inner cylinders 8, 7 with partitions and baffles 9 and 11 - - 16 providing tortuous passages for air admitted through a rotatable damper 27, the heated air being projected into the furnace by a nozzle member 18. The casing 5 is supported by a neck 1 with inclined flanges bolted to the door or other part of the futnace around an opening 2, so that by rotatably adjusting the neck the position of the casing within the furnace may be altered. The inner cylinder 7 is in communication with the neck 1 and the cylinder 8 is closed at its inner end and joined to the cylinder 7 by the partition 9 so that the air is divided into two separate streams, which re-unite at the nozzle member 18 bolted to the casing 5 around an opening 17. A central hole 19, inclined rectangular apertures 20 and S-shaped apertures 21 in the nozzle direct the heated air to all parts of the combustion chamber. Fans 22 loosely mounted on spindles 22a cause whirling of the air. The damper comprises a rotatable member 25 having hollow outwardly-extending projections 28 with openings for the inlet of air and an apertured damper plate 27 coacting with a similar stationary plate 24 to which the member 25 is pivoted bv a bolt 26. A wire handle 29' is fixed to the projections 28 and a dial 30 is provided against which registers a pointer 31 on the rotatable member 25. A damper in the chimney pipe 45 has on its spindle a pointer 38 registering with a scale 39; this damper can be regulated by a set screw as to its minimum opening and is provided with holes closed by pivoted adjustable flaps for fine adjustment of the draught. A damper for supplying air to the chimney to check the draught is adjusted by a rack bar 35. A dial and pointer may also be provided on the ash-pit damper.
Patent GB-989952-A (GB)
Title: Protopectin composition
IPC: A23L29/231
Filed: 1961-09-04
Abstract: Water absorption by protopectin when used as a flour substitute in making baked goods is rendered less rapid by applying to the protopectin an aqueous preparation of starch, gelatine or albumen, e.g. egg albumin and drying.  A further coating of hydrophobic material may be applied from a liquid dispersion thereof, e.g. a suspension in edible oil of finely-divided, high m.pt. fat may be mixed with the coated protopectin.  The protopectin may be prepared from the veins and juice sac coverings of citrus fruits or from the peels of citrus fruits.  Examples are of muffin, waffle, doughnut, pancake and biscuit formulations and breadcrumb or meal preparations for coating meat or fish containing the coated protopectin and wheat flour, cornflour, gluten flour, sugar, salt, baking powder, yeast, melted cooking fat, edible oil such as cottonseed oil, whole egg, dried egg and egg yolk powder, flavourings such as vanilla, mace and lemon oil.
Patent GB-1313891-A (GB)
Title: Methods of manufacturing semiconductor devices
IPC: H01L21/00
Filed: 1970-06-30
Abstract: 1313891 Crystallizing melts PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 June 1970 [1 July 1969] 31704/70 Heading BIS [Also in Divisions H1 and Cl] The manufacture of a semiconductor device includes the step of epitaxially depositing on a substrate consisting of a single or mixed A<SP>III</SP>B<SP>V</SP> compound a layer of a single or mixed A<SP>II</SP>B<SP>IV</SP>C 2 <SP>V</SP> compound from a melt containing its components. A<SP>II</SP> is one of beryllium, magnesium, zinc, cadmium and mercury, B<SP>IV</SP> is germanium, silicon or tin and C<SP>V</SP> is nitrogen, phosphorus, arsenic or antimony. The melt may consist of a solution of the A<SP>II</SP>B<SP>IV</SP>C 2 <SP>V</SP> compound, formed by vapour transport reaction, in one or more of tin, lead, bismuth, zinc and cadmium, and may contain excess of A<SP>II</SP> or B<SP>IV</SP> or conventional dopants such as Ga Al, S, Se and Te to provide acceptor or donor doping. The belt and substrate may be contained in a crucible as described in Specification 1299610 in which a withdrawable slide allows the melt and substrate to be brought into contact. The lattice constants of the substrate and layer should match within 5% as in the structures specifically described which comprise ZnSiAs 2  and CdSiP 2  and GaP. The heterojunction with the substrate may also form a PN junction of the device, or the substrate may be used as a semi-insulating support, or as an electrode and support. A two stage epitaxial growth may be used to provide a PN junction in the layer or a junction 4 formed by a subsequent vapour phase diffusion as in the light-emitting diode of Fig. 1. In this device an aluminium injecting contact may replace the junction. Other devices described are a Schottky-barrier voltage-dependent diode capacitor and a Schottky diode with a passive substrate, the Schottky contacts being of gold and tin respectively.
Patent GB-1457718-A (GB)
Title: Methods and means for cutting weakening grooves in a metal foil particularly for manufacturing bottle capsules
IPC: B21D51/38
Filed: 1975-07-30
Abstract: 1457718 Making bottle capsules; seaming SOC EUROPEENNE DE RECHERCHE ET D'EXPLOITATION COMMERCIALE ETAB 30 July 1975 [2 Aug 1974] 31857/75 Headings B3A and B3J Weakening grooves are impressed in metal foil 1 between two rollers 12, 13 one of which (13) comprises steel washers 34, Figs. 4 and 6, clamped on a shaft 48 between inner distance pieces 49 and outer distance pieces 53, 53A, the latter shaping spaced peripheral segments 40 of the washers 34 which have external grooveforming edges 35 projecting outwardly of the distance pieces 53, 53A. As shown, lines of weakness 8, 9, 10 or 11, Fig. 1, are formed in continuation of the tabs 7 of bottle &c. capsules 2 to be blanked out of the foil. The segments 40 are formed by radial and arcuate cuts 42, 46, the cuts 46 being at the diameter of the spacers 49 which thus support the segments 40. Keys 50, 52 are provided between the inner and outer distance pieces and between the inner distance pieces and the shaft 48.
Patent GB-388868-A (GB)
Title: Improvements in or relating to the magnetic separation of finely divided materials
IPC: B03C1/03
Filed: 1931-11-18
Abstract: 388,868. Magnetic separators. THOMPSON, H. H. and DAVIES, A. E., Magnet Works, Lombard Street, Birming- ham. Nov. 18, 1931, No. 31946. [Class 72.] In magnetic separators of the kind in which the material to be treated is carried by an inclined tray a under rotating armatures c which are energized by electromagnets d, tapered or inclined deflectors e of non-magnetic material are arranged on the trough a near the adjacent edges of the armatures c. The deflectors e are of tapered form, the whole of the upper surface or only the surface of the thickened portion being grooved in the direction of flow of the material. The lower part of the periphery of the armatures c may be provided with ribs h and stationary armatures g acting as intensifiers may be fitted on the trough in front of or behind or both in front and behind the armatures c. Water may be fed to the armatures c by pipes i so as to provide a continuous film of water on the outer faces of the armatures. A series of armatures &c. may be provided on one trough.
Patent GB-1130881-A (GB)
Title: Steroidal-í¸-dien-3-ones and derivatives thereof
Inventor: OBERSTER ARTHUR EUGENE
IPC: C07J1/00
Filed: 1964-08-06
Abstract: 1,130,881. Steroidal - #<SP>4,9(10)</SP> - dien - 3 - ones and derivatives thereof. MERCK & CO. Inc. 4 Nov., 1965 [6 Aug., 1964], No. 32026/64. Heading C2U. 17α - Haloethynyl - 17# - hydroxy - 13- (C 1-4 alkyl) - gona - 4,9(10) - dien - 3 - ones (halo referring to chloro and bromo only), the 13-methyl representative of which is novel, are prepared from the corresponding 17-ones and a halo-acetylide of an alkali or alkaline earth metal or a haloacetylenic magnesium halide, the 3-keto group being optionally or, when a magnesium halide is used, necessarily protected by conversion to a group reconvertible to a 3-oxo group by acid hydrolysis and, when necessary, removing the 3-protecting group, the protected 3-keto compounds also being novel. Specified protected 3-keto compounds are the 3-alhylenedioxy-5(10),9(11)- dienes, the 3-(N.pyrrolidinyl)-3,5(10),9( 11)- trienes and 3-ethers of the 3-hydroxy-3,5(10), 9 ( 11 )-trienes The gona-4,9(10)-dien-3-ones are stated to be progestational agents, and they may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1403107-A (GB)
Title: Device for forming part of a stabilising assembly for use  between a vehicle and a trailer
IPC: B60D1/32
Filed: 1972-07-07
Abstract: 1403107 Road-vehicle couplings EDUARD BESCH & CO 7 July 1972 [7 July 1971] 32066/72 Heading B7T A device for forming part of a stabilizing assembly for use between a trailer and a towing road vehicle, comprises a bar 12 having a central portion and two symmetrically arranged arms extending from the central portion, the bar 12 being provided with at least one pair of pins, e.g. the pins 17, each for the attachment of a damper, the central portion of the bar being provided with a clamping member 13 which enables the bar to be applied and clamped to a hitch pin 10 in a selected position therealong spaced from a coupling ball 11 at an end of the hitch pin. In use, dampers are connected between the pins 17 and the trailer and the stabilizing assembly acts to stabilize relative angular movement between the trailer and the towing vehicle. In a modification of the device as illustrated, the arms of the bar 12 are extended outwardly and are each provided with a plurality of holes to enable the positions of the pins mounting the dampers to be varied or to enable attachment of more than two dampers.
Patent GB-857121-A (GB)
Title: Refining synthetic resins
Inventor: SKINNER STANLEY JOHN
IPC: C08J3/00
Filed: 1958-10-08
Abstract: Toughened polystyrene is refined by passing it in a heat softened state through a screen of such fineness that particles of gel orginally present are broken down in size and sheets of the resulting product have a more uniform appearance than those formed from the unrefined resin.  The toughened polystyrene is a resin obtained by polymerizing styrene in the presence of a rubber or by blending polystyrene with a natural or synthetic rubber (e.g. a styrene/butadiene rubber).  Suitable screens are stainless steel wire screens of mesh between 180 and 400.
Patent GB-1132323-A (GB)
Title: Self-drilling anchors
IPC: F16B13/13
Filed: 1966-07-19
Abstract: 1,132,323. Screw anchors. DIBOTEC A.G. 19 July, 1966 [19 July, 1965], No. 32272/66. Heading F2H. [Also in Divisions B3 and B4] A self-drilling anchor comprises a bore 1 and a core bit having teeth 4, the diameter 1a of the bore at the position at which the core bit merges into the adjacent bore section 1b is smaller than the diameter of the latter section in order to facilitate the removal of drilling dust through the bore. The anchor is provided with an internal sc@ -thread 2 and a spigot 3 adapted to be held in a chuck of a rotary-percussive tool, the spigot being broken off after the anchor has been driven in. The external surface of the anchor may be formed with a helical groove (9, Fig. 4) or circular grooves (12, Fig. 5), in order to assist in removing dust from the bore and prevent jamming.
Patent GB-925410-A (GB)
Title: Electromagnetic switching devices with sealed magnetic contacts
IPC: H01H1/02
Filed: 1961-09-08
Abstract: Electrical contacts are made from a metal alloy formed by 77% platinum and 23% cobalt, by weight, this alloy not being heat treated.
Patent GB-317681-A (GB)
Title: Improvements in or relating to locks for trunks
IPC: E05B65/50
Filed: 1928-11-06
Abstract: 317,681. Pl³macher, H. Nov. 6, 1928. Hasp fastenings.-In a trunk lock having a hasp a which springs open automatically and has a keeper f engaging in the cover plate of the lock to receive the catch or bolt, a plate b is slidably or rotatably mounted on the hasp and carries a hooked pin c passing through slots d, e in the hasp and cover-plate of the lock respectively. Manipulation of the plate b holds the hasp against the coverplate independently of the lock bolt or allows it to spring open when the bolt is released.
Patent GB-172318-A (GB)
Title: Improvements relating to electric switches
IPC: H01H9/34
Filed: 1921-12-02
Abstract: 172,318. Metropolitan - Vickers Electrical Co., Ltd., (Assignees of Colby, O. A., and Denman, E. W.). Dec. 2, 1920, [Convention date]. Switches, actuating; electric-motor actuation; contacts.-In enclosed switches of the knifeblade type, the blades operate in a shallow chamber formed in an insulating housing which is only of sufficient depth to permit free rotation of the blades. Arcing is thus reduced owing to the cooling effect of the walls of the chamber. Fixed contacts, mounted on the outside of this casing, project through countersunk openings into the chamber, and so provide cutting-edges for the arc. The switch mechanism is mounted on a bracket 6 on a casting 5, and comprises a rotary shaft 7, an insulating hub 8, and the switch blade 9, which is rotated by a motor 10 through reduction gearing 11. The blade moves through a quarter-turn with a snap-action. The arc-extinguishing mechanism comprises an insulating base 12 supporting the main terminals 13 and the lower fixed contact jaws 14, which are supported in recesses 15. A circular opening 16 in the base 12 receives the hub 8. An insulating cap 17 covers the blade 9, leaving the shallow member 18 between it and the base 12. The cap 17 is provided with a series of rectangular openings 19, the ends 20 of which are countersunk forming knife-edges 21. Similar corresponding openings are formed in the base 12, Fig. 3. The upper contact members 22 are connected to their respective lower members 14 by means of the bolt 23 having an enlarged head 24, which is tapped to receive the terminal 25. The contact 14 is mounted on the shank 27 of this bolt and is disposed between a washer 28 and the bolt head 24. The bolt 23 is clamped to the base 12 by the internally threaded sleeve 29 which supports the contact 22, an oblong washer 30 and screw 31 retaining said contact in position. On opening the switch, the arc formed tends to follow the blade and expand spherically. The knife-edges 21 tend to prevent this by severing that part of the arc from the part following the blade into the chamber 18. In the chamber 18 the arc is chilled bv contact with the walls and so extinguished, while the narrow confines of the chamber force the gases through openings 19 with such velocity that the are is blown away from theblade.
Patent GB-438290-A (GB)
Title: Phonographic record storage
IPC: G11B33/04
Filed: 1934-11-09
Abstract: 438,290. Index tabs. POLLAK, B., 59, Albertgasse, Vienna. Nov. 9, 1934, No. 32371. Convention date, Nov. 10, 1933. [Class 16] [See also Groups XXXVIII and XVII] In order to facilitate the storage of gramophone disc records, each record is formed with projections 1, 1<1>, Fig. 1, furnished with suitable distinguishing inscriptions, numbers, colours, &c., one of the projections being adapted to serve as a label whilst the other is adapted to engage a counter abutment 3 in the record case. These counter abutments are formed in staggered relationship on a block as shown at 12 in Fig. 15, a pair of these blocks being arranged on the bottom 16 or side walls 17 of the record case, Fig. 13, the records resting on horizontal bars 14, 15 and being retained and spaced by resilient keepers 13 formed, for example, of fabric-covered bent metal rods. The staggered formation of the counter abutments ensures that the exposed labels on the records are arranged in offset relation and can be easily read. The projection 1<1> may be replaced by a recess or tooth on the record edge. The projections may either be formed integral with the record or may be in the form of separate channelled pieces (Figs. 7-9, not shown) adapted to be secured on the edge of the record. According to further modifications, the projections are formed as a thickening of the rim of the disc either within the periphery thereof or so that the thickened parts project outside the periphery thereof, the counter abutments in these cases being dispensed with. The Specification as open to inspection under Sect. 91 comprises also a construction in which a recess is provided in the unplayed middle portion of the record. This subject-matter does not appear in the Specification as accepted.
Patent GB-410747-A (GB)
Title: Improvements in aircraft
IPC: B64C23/00
Filed: 1932-11-16
Abstract: 410,747. Aircraft. BORDOWSKY, J. M. LADO-, 21, Rond Point de la Reine, Boulogne-sur-Seine, France. Nov. 16, 1932, No. 32409. Convention date, Nov. 17, 1931. [Class 4.] An aircraft comprises one or more propellers giving a forward thrust and two or more lifting screws 5 on upwardly convergent axes arranged beneath a plane 1, the angle between the axes being 3-5‹, the distance of the propellers below the plane not less than half the chord of the plane, the starboard screw rotating clockwise and the port screw counterclockwise as seen from above, and the area swept out by the screws being about 2À5 times the area of the plane. This combination of plane and lifting screws is stated to have a negative drag. The screws are synchronously driven and may be locked against rotation or allowed to rotate windmill fashion when desired. A machine comprising twin fuselages with a central nacelle having two engines driving respectively a tractor and pusher propeller is described, and also a machine having two tractor propellers side by side and pairs of lifting screws under each wing. The relative direction of rotation of the screws of each pair is the same as that of the screws shown in the Figure. The Specification as open to inspection under Sect. 91 comprises also a machine without wing having a tractor propeller and two lifting screws on upwardly convergent axes, the direction of rotation of the screws being as described in the other machines. This subject-matter does not appear in the Specification as accepted.
Patent GB-1355156-A (GB)
Title: Device for the lubrication of tooth flanks of gear wheels
IPC: F16H57/04
Filed: 1972-07-11
Abstract: 1355156 Lubricators N F THARALDSEN 11 July 1972 [15 July 1971] 32440/72 Heading F2A A lubricator for the tooth flanks of gearwheels 1 comprises a toothed or spiked lubricant applying wheel 2 containing radial lubricant ducts 11, 12, 13 which open into the flanks of the teeth or the flank-forming faces of the spikes of the wheel, there being at least two ducts in each tooth or each set of spikes of the applying wheel, each duct having only one outlet 14, 15, 16, the ducts being fed from a supply groove 5 in the surface of the shaft 3 on which the wheel rotates, the arrangement being such that during rotation of the wheel the ducts are successively brought into communication with the groove. The ducts may be of different radial lengths so that lubricant is only supplied to the engaging parts of the applying and gear-wheels. The ducts may open into the oppositely directed flanks of the teeth of the applying wheel, to allow rotation in both directions.
Patent GB-1453714-A (GB)
Title: Load handling equipment
IPC: B66F3/24
Filed: 1973-07-07
Abstract: 1453714 Spreaders RUBERY OWEN & CO Ltd 8 July 1974 [7 July 1973] 32473/73 Addition to 1326213 Heading B8H  As described in parent Specification 1326213 a spreader frame 4 is movable horizontally relative to a carrier by means of an hydraulic jack 29 located at each end of the carrier 1 and connected to a pin 26 on the frame 4, the carrier 1 and spreader frame 4 being connected by means of suspension links 3. In the present invention when a load is to be picked up which is not centrally disposed beneath the carrier 1, one or both of the jacks 29 is or are actuated by means of an associated control valve 5, Fig. 2, connected to each end of the associated jack 29 so that the spreader frame 4 is then located directly over the load and the links 3 are then inclined to the vertical. The carrier 1 is now raised by hoist means 2, lifting with it the spreader frame 4 and load, both of which are offset relative to the carrier 1. A switch 13 is then closed to energise solenoid valves 8 whereby both ends of the jacks 29 are connected to a fluid reservoir T through conduits 9, 10 and the piston rods and pistons of the jacks 29 are freely movable in their cylinders such that the leverage exerted by the offset load causes the spreader frame and load to swing to a position beneath the carrier 1 in which the links 3 are again vertical, the piston rods of the jacks 29 moving therewith. By releasing the switch 13 the valves 8 are de-energised and the conduits 9, 10 are thereby disconnected from one another, such that the jacks 29 are locked hydraulically in this position.
Patent GB-1518303-A (GB)
Title: Electronic oscillator
IPC: H03K4/06
Filed: 1975-08-04
Abstract: 1518303 Transistor oscillator RCA CORPORATION 4 Aug 1975 [21 Aug 1974] 32493/75 Heading H3T An oscillator e.g. for a quadraphonic audio decoder producing both square and triangular output comprises a preferably constant current source 16 alternately charging and discharging a capacitor 12, one path B being direct and the other A via a current mirror 100, the path in operating being selected by a current steering circuit 106 switched by the level of voltage across capacitor 12. The frequency may be set by the variable resistor 5 controlling the current source 16. While charging the capacitor 12, transistor 14 will be held conducting by the drop across resistor 31, keeping differentially connected transistor 15 switched off for so long as the voltage on capacitor 12 and the base of transistor 23 is less than that at E on the base of differentially connected transistor 24 which is conducting and by current mirror 102 maintains the current through resistor 31. When the voltage on capacitor 12 reaches that of the base 24, the emitter current of transistor 24 falls, copied by the mirror 102 so that the drop on resistor 31 falls to complete the 'toggle' switch off of transistor 24 and switch on of transistor 23 and simultaneous change-over of path A to path B. Capacitor 12 now discharges via transistor 15 and current source 16 until its voltage falls below the new level of drop across resistor 31 under only the emitter current of transistor 26 biased by zener 29. A square wave output may be taken from point E and a triangular wave, lagging in fundamental quadrature with the square wave, is available across the capacitor 12. If required the square or triangular output may be compared with an input wave 110 in the phase comparator 112 (not disclosed), the output being applied via low pass filter 1, 2 to pull the oscillator into synchronism, e.g. at 30 kHz in a CD-4 four channel audio decoder. All components may be integrated except capacitor 12 and variable resistor 4.